Surge Broadleaf Herbicide for Turf provides an option for late spring, early summer, and fall weed control. Surge kills knotweed, plantain, oxalis, and other listed broadleaf weeds up to twice as fast as traditional 3-way amine products, and offers yellow nutsedge suppression. Highly selective in both warm- and cool-season turfgrasses, Surge can provide visible activity in hours, and weed death can occur within 10-14 days.